Draft-gear.



EARD.-

muy WEAR. APPLCATION FILED 13203;-1913.

Patented Dec. 29. 1914 EHESS@ [ipp-Eemian To all fic/710m 'ii m ay conce/m lmowh that PHIL M. Bmw, residing at Si. Leiiis, Missouri, and being e siiizeii of 'the United Stilles, have iiiifeiieil seri-:iin new and useful riiareveleus iii D fit-@eilig o which ehe elloii'iiig is e full,

and exact escriptiese such as will eniers skilled iii Vthe art te which it epbeleg haci so the accompanyiiig dren *which illusraie 'he preferred i'orm 0i? remi-ion,y -heugh il; is io be underseofl iiiveniiei is liet limiied to the'exaet Q eff construction shown and described, shvious tha various modifications ,r'll occur Tie persons 'skilled iii the f e ifertieai section on the E of Fig. 3,. gig. 3 is a sec tion en life L B si Fig. l. Fig. e is im isomeric. W of the easing C which iiicioses the fictional elements and receives their iricioii against its iime walls reliez ing l-he drai sills spreading strains.

gear is moflication of the Ordiiiery ian-em spring gear, designed se that iiiifler puliirig striiiijls -heie is no lierenee,

hui', under huliiiig "trains, which run greatly iii excess @if the 'idling strains, there are ecieief i'ieowfi eleiiieiis introduced to help uer 1Aerees. This pari; e which 'elle iieieiizil elements s iii swfv i manner that exerted on the danger of trap rivets or rmismitted i0 the e e f castmetal from mf strap porrioii .glued that a0 center isili srap rivets e,"

' oli Gf iiired. lily arrangeehe danger of shear- "ii'es is obvizitecl by es ef the iroiit oi the couzietional 'part of this up e little more 'center thimble no lmore spaee is requiiV s to make u Lo use the same, re'ers one away with ilian in the oriumry eoiisi: of ehe rear rail si; Heiner i; dees not nieve isa-eli unile as the ordinary iff 1 reference to Vi l ullinv', the l e F through e 'rear eil pri-rigs in the usuel f simpl@4T rial `l strap enel advantages ei f ment thai el from springs.

"ILL

'hrough a eef es the il s Construci'ieii iiuil str-eps eilier at the @einer Erent p/:irt of ce1 nl point `in .t L when lie same is clrziiri ether while he @mi i which s\'i\v'eliiig serine part or" the gear te rem of the cnr 'and exer; a on the from-eil' the By reference in' buiiiig while front follower spring l 'n compressi; thiiiible ri the usuel form gear the from; iai Wedge shaped .i rearwardly farces bleclis i'eerm poeltei; the freni" e;

ne zu pin S holds v/ through the blocks M' and P will exert a coi-responding increase of pressure of the friction blocks O against the Walls of the casing When the gear has been com pressed and the pressure ceases on the couplerinstcad of having the quick recoil duc to the expansion of the springs as in thc ordinary spring gear, 'which recoil is an added strain on the equipment as well as causing jarring to the passengers, in this "mr the Yfriction of the blocks O against ,rising will retard the spring expansion until Ythe springs lhave returned to their original position. This is a great advane as overcoming the sudden rebound of tne ordinary spring gear. v

Jie assembling of this gearis accomplislied by first riveting tliecast tail strap to the coupler and inserting the front spring i with its followers, then placing the frictional blocks in position between .the top and bottoni retaining Walls I which profrom the body of the front tailstrap,

dropping the retaining pin posiy tecn sliding the rear tail strap over the [if from the side and lastly sliding the inclosnig casing C over the rear tail strap to its position andV inserting the rear folloix-ers and spring. The Whole is then lifted to i lace the luo's R on the ca'sln C slldr). i .b

in the receiving grooves of the draft ii lim-ver slides T. vIt 'will be seen that the top and bottom Walls of casing C hold the rear tail stiap from spreading. The front' sti-ap rivets U having only the funcof preventing the spreading of the tail can be very light, as the coupler iming 'the lugs K of the forward gail strap u so will the frictional resistance bet-.orne greater, as these forces'actmg only andsuppcrted in place by the usuall relieve the lconnectin rivets U of the stresses incident to bu ng.

-What I claim's: 'i

1..In a tandem draft gear, a front tail strap havinga rearward extension, a rear tail strap lapping said extension, a casing partly inclosing said extension and said rear tail strap, and frictionh producing means movable in said casing.

2. In a tandem draft gear, a box like casing and swiveling tail straps lapping within said casing. V

3. In combination, draft lugs having mid portions adapted to serve as intermediate follower stops and having recesses therein, a casing anchoredby said recesses, friction elements movable in said casin and a tandem draft gear comprising tai straps" lappingwit'hin said casing.

4. In combination, lapping and swivel-- ing tail straps, a casinginclosing the lapping ends of said tail straps, draft lugs cooperating with said casing to anchor it in osition friction roducin means movable in said casing, and means for actuating said friction producing means. A :I

5.,'In a draft gear, draft lugs, a casing anchored thereby, followers, tandem springs and` tail-straps, said tail straps lapping 

